PSI - Issue 44

Lorenza Abbracciavento et al. / Procedia Structural Integrity 44 (2023) 750–757 Lorenza Abbracciavento et al./ Structural Integrity Procedia 00 (2022) 000–000

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et al . 2019); through an emergency response that effectively copes with and contains losses; through recovery strategies that enable the community to return to levels of pre-disaster functioning as rapidly as possible. From this perspective, an adequate seismic resilience of hospitals and other acute care facilities is strongly needed. In this case study, the Emergency Department of Ospedale Mauriziano has been selected because: i. the continuing operation of the Emergency Department is needed to ensure the seismic resilience of the entire hospital system; ii. from an engineering point of view, its building is characterized by a close interdependency between performance levels of both structural and nonstructural components. In particular, we emphasize the pivotal role played by specialty medical equipment to the aim of service continuity. Among the equipment items surveyed in the Emergency Department, a Computerized Axial Tomography (CAT) scan is examined, drawing attention to its relevance to the service continuity of the Emergency Department and to its considerable economic cost. Following a resilience-based approach, seismic analyses expressly investigate both the integrity and functionality of the equipment item under seismic loading. 2.2. Description of the CAT scan A CAT scan is an imaging diagnostic medical device which, through the emission of X-rays, allows the internal visualization of the entire body and of specific anatomical sections. The scanner system is composed by hardware terminals and software support, both finalized to the acquisition of patient data in form of images.

Fig. 2. Computerized axial tomography (CAT) scan: (a) lateral view of the body scanner, composed of gantry and patient table; (b) position of anchoring base plates, upper view; (c) gantry component of the body scanner, side and front views; (d) Patient table component of the body scanner, side and upper views. The CAT scan considered in the present study (Figure 2) consists of two units, named as gantry and patient table . Figure 2(a) shows the relative position of gantry and patient table in the operative configuration: the upper platform of the patient table can move laterally and passing through the opening gate of the gantry. In